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arXiv · 1107.1781

The quantum computational speed of a single Cooper Pair box

A. -S. F. Obada·D. A. M. Abo-Kahla·N. Metwally·M. Abdel-Aty
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Abstract

The speed of computations is investigated by means of the orthogonality speed for a charged qubit interacting with a single cavity field prepared initially in a Fock state or Binomial state. We observe that the rate of the computational speed is related to the number of photons inside the cavity. Moreover, we show that the qubit-field coupling plays an opposite role, where the speed of computations is decreased as the coupling is increased. We suggest using the number of photons in the field as a control parameter to improve the speed of computations.

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A. -S. F. Obada, D. A. M. Abo-Kahla, N. Metwally, M. Abdel-Aty. 2011-07-09. The quantum computational speed of a single Cooper Pair box. https://doi.org/10.1016/j.physe.2011.06.013

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